/Engine/Source/Runtime/InteractiveToolsFramework/Public/BaseGizmos/CombinedTransformGizmo.h
Broadcast at the end of a SetVisibility call if the visibility changes.
typedef TMulticastDelegate_TwoParams< void, [UCombinedTransformGizmo](API\Runtime\InteractiveToolsFramework\BaseGizmos\UCombinedTransformGizmo) *, bool > FOnVisibilityChanged